| Relay Output | 2 Channels | 4 Channels | 3 Channels | 6 Channels |
| PWM Output | - | - | 2 Channels Optional 0-10V/4-20mA output | 4 Channels Optional 0-10V/4-20mA output |
| Digital Input | 3 Channels | 4 Channels | 4 Channels | 6 Channels |
| Analog Input | 2 Channels | 3 Channels |
Temp Sensor DS18B20 | 1 Channel (Unavailable if RS485 is selected) |
| IIC Interface | 1 Channel |
| Dimensions (L*W*H) | 90*90*40mm | 115*90*40mm | 145*90*40mm |
| Optional Configurations (All Models) |
| Communication | Bluetooth (Standard) WiFi+BLE 4G (China version includes 5 yrs data)
+ BLE |
| IoT Platform | Tuya Smart MQTT |
| Power Supply | DC 5V USB (Standard) 9-48V Wide Voltage AC 110-220V |
| Other Options | RS485 Modbus Interface 433MHz Wireless Module Custom External Antenna |
| Price | ¥239+ | $34+ | ¥279+ | $40+ | ¥289+ | $41+ | ¥379+ | $54+ |
| For bulk orders, please contact sales for
better pricing. |